Mixing-machine.



R. D. ,SOARS.

MIXING MACHINE.

APPLICATION IILED mm: 4, 1910.

985,299., Patented Feb.28 1911.

2 SHEETS-SHEET 1.

21 if i R. D. SOARS.

MIXING MACHINE.

APPLIUATIOK P'ILED JUNE 4, 1910. 985,29, Patented Feb. 28, 1911.

2 SHEETS-SHEET 2.

TED STATES PATENT OFFICE.

ROBERT D. SOARS, 0F BUFFALO, YORK, AS SIGNOR TO HUNSO MACHINERY GOM PANY, 'A CORPORATION OF NEW YORK.

mums-madame This invention relates to improvements in mixing machines and more particularly tomachinesfor mixing fertilizers, and it has for its object the provision of a simple, inexpensive and effective machine of this character inwhich a continuous mixing of the material is obtained and which permits the discharge of the mixture at intervals without cessation of the mixing operation and withoutin any manner interfering with the feeding of the material into the mixer.

Another object of my invention is, to so construct the machine that it will receive the materials to be mixed, carry the same around in the drum and toward the center of the same to be discharged at a central pointafter having been mixed; to provide the drum with outlet openings and surround the drum at the point where it has said openings with a stationary inclosure forming anannular chamber provided with a discharge opening with which the outlet openings of the drum are adapted to registermpmentarily during the operation ofthe machine and to equip said discharge opening with a suitable closure; and further to otherwise improve on mixing machines now inuse.

To these ends the invention consists in the construction, arrangement and combination of arts to-be hereinafter described and particu arly pointed out in the subjoined claims.

Reference is to be had to the accompanying drawings forming a part of this specification in which similar characters of reference indicate corresponding parts in the several figures, and in which,-

Figure .1 is an end view of my improved mixing machine. Fig. 2 -isa side elevation of the same. Fig. 3 is a transverse section taken (inline 33, Fig. 2, looking in the direction of the arrow crossing said line.

I Fig. 4 is a central longitudinal section of the machine. 7

As illustrated in the drawings, the drum designated 1 is tapered from a point inter- Speciflcation of Letters Patent.

Application filed June 4,

Patented Feb. 28, 1911. 1910. Serial No. 565,143.

mediate its length toward opposite ends, its endsbeing closed, as at '2, and having central openings 3, one of which openings is shown closed, as at 4, Figs. 2 and 4 and the other opening serving as a feed opening and having a feed-spout 5 extending thereinto.

each end of the drum. While I have shown the drum tapered from an intermediate point toward opposite ends, it is not absoto, as the drum may be otherwise formed if desired, and for some kinds of material it may be found advisable to change the form of the drum.

At a point centrally between the ends of the drum, I provide the same with one or more mixture outlet openings fi and between the transverse center of the drum and the ends thereof, I arrange two series of mixing wings 7 each being riveted or otherwise secured to'angle bars 8 suitably fastened to "the wall of the drum at regular intervals around the same. Each wing 7 is formed of sheet metal bent at its inner end into the form of a trough or scoop 9. which is inclined toward the transverse center-of the drum, or in other words, in .a direction opposite to the conical or tapered-wall of the drum. The mixture fed .into the drum through the feed-spout 5 is carried upward during the revolution of the drum by these wings and discharged from the inner end thereof.

Surrounding the drum where it has its outlet openings, isa shell or housing 10 which forms an annular intervening space or chamber 11, said shell .being constructed of sheet metal having opposite marginal portions bent inward and against two spacing rings 12 to which it is riveted or otherwise secured, said spacing rings lying in contact with thedrum 1,- as clearly shown in 'Fig. 4. At its lowest point the shell has a mixture discharge opening 13 which is 7 closed by a slide-gate 14 operated by a rod scrapers 16 formed of angle bars having their radial members-l 'ng with their edges against the inner sur ace of the surround- If desired a feed-spout may be provided atlutely necessary that such form be adhered.

the drum and the surrounding shell are ing shell. The shell or housing is rigidly supported by means of uprights 17 or otherwise so that the drum rotates within the same.

It is intended that this mixin apparatus be either elevated and supporte on a suit able frame work, or that it be suitably supported on a floor and the floor provided with an opening for the placement therein of a discharge hopper. In the drawings, I have shown a frame work consisting of longitudinal sills 18 which mayform either part of an elevated structure or be supported on the floor of a building and bridging these sills are two cross-bars 19 in the form of I- beams The hopper referred to is desig- Dated 20 and its enlarged receiving end is meshes with a gear-rim. 27 secured to the drum. This last-mentioned shaft also has secured thereto a pulley 28 around which is adapted to be passed a driving-belt for imparting rotary motion to the shaft and through the medium of the pinion 26 and gear-rim 27, this motion is imparted to the drum. The supporting rollers on said lastmentioned shaft are loosely mounted thereon for'the reason that they are larger than the pinion 26 and by so constructing the rollers, all unnecessary friction is eliminated. V

By the provision of the fixed housing around the central portion of the drum, the materials after being mixed may be readily dischar ed without interfering with the materials eing fed into the drum, thus resulting in a mixing machine which is in continuous operation and may be fed into or discharged therefrom at will. The mixture as it reaches the center of the drum escapes through the outlet openings therein and is carried around within the fixed housing by the scrapers 16 and when opening the slide gate 14, the mixture is discharged through the discharge-opening in said housing.

In the drawings, I have shown four outlet openings in the drum, thus permitting theflmixture to escape from the drum at four are different points when said points brought into registration with the dischargeopening, but any other number of outlet "openings may be used, if desired.

' From the construction described it will be apparent that the fixed shell or closure is disposed in the longitudinal length of the drum between the end mixing portions therelength of the drum, the mixing devices, and

of, and preferably at its central zone; that i the discharge openings leading from the drum into the space between the drum and fixed shell have, at each side thereof in the that these mixing devices deliver the material from opposite end portions of the drum toward said openings; and that the sweeps or projections extending into the space between the drum and fixed shell move the annular mass of material over the fixed wall of the shell and when the discharge door or closure is opened, such material is forced out of the machine. then material is fed into one end of the drum it is firstmixed by the revolving motion of the drum. and by the mixers projecting from the surface of the drum adjacent the feed opening; the material then gradually fillsthe space between the drum and the fixed shell, and distributes toward the opposite end of the drum beyond the discharge openings through which the mixed material passes from opposite sides thereof to the space in the zone covered by the fixed shell, as material is discharged from time to time by opening the door or closure of the shell.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is, T i

1. In a machine for mixing fertilizers, the combination of a drum having end mixing portions and a feed opening at one end thereof and aperipheral discharge opening disposed between the end mixing portions of the drum, a closure or shell disposed in a zone between the end mixing portions of the drum, and means for relatively rotating said drum and closure with respect to each other.

2. In a machine of the character described, the combination of a rotatable drum having end mixing portions and a feed opening, an outlet in the peripheral wall dis-- posed between the end mixing portions of the drum, and a stationary closure or shell surrounding a zone of said drum between the end mixing portions thereof, said shell or closure inclosing said peripheral opening and preventing discharge of material from the machine.

3. A rotatable mixing-drum having end mixing portions and provided with a feedopening at one end with an outlet-opening in its peripheral wall disposed in a zone of the drum between the end mixing portions thereof, a housing in the zone of said pe- 'ripheral opening, surrounding said peripheral wall between the end mixing portions of the drum and'serving to prevent the discharge of the mixturefrom the machine, said housing having a discharge opening and means for closing said discharge opening.

4. A mixing-drum having end mixing portions and provided with a feed-opening providing a c amber between the twoin at one end and'an outlet opening in its peripheralwall, a stationary shell surrounding said drum in a zone disposed between the end mlxm portlonsof the drum and constant communication with the interior of the drum, said shell having a discharge opening and means for opening and closing said discharge-opening. 5. A rotatable drum gradually enlarged from the ends and having a feed opening in one of said ends and anoutlet opening in one of its peripheral walls at the enlarged portion of said drum, a stationary housing surrounding the enlarged portion of said drum in which-said drum rotates'and forming a space between the enlarged portion of the drum and said housing in which mixed material is adapted z to be circularly moved, a discharge ppening in said housing, and means for opening and closing said discharge opening;

6. A rotatable drum tapered toward opposite ends and'provide'd with a feed-opening at one end and'an outlet opening in its peripheral .wall at a pointcentrally between the ends of said drum, mixing-wings within the drum adapted to mix and deliver the materials from the end portions of the drum toward said central peripheral outlet opening, and a stationary housing surrounding the enlarged central portion of the drum and in constant communication therewith and having a discharge opening and means to open and close said discharge'opening. 7. In a fertilizer mixing machine, the combination of a drum, means for feeding material thereinto, said drum. havinga peripheral ripening for discharge of material from the rum, a stationary casing or housing disposed-about the drum and preventing discharge of material therefrom, and means within the drum for directing the mixed material from the mixing portions of the drum toward the said peripheral opening and into the space between the drum and stationarycasing or housing.

8. A rotatable drum having an outlet opening in its peripheral wall and radial 0 mixing wings; secured to the inner side of said wall and; rovidedwith scoop portions at their inner e ds",",said scoop portions being inclined to deliver the materials into the plane in which'said outlet opening is formed, means for feeding material into said drum, and means. for controlling the discharge of the mixture through said outlet opening.

9. A rotatable oppositely-tapered drum having a plurality of outlet openings .at'a point centrally between its ends, afeed-opening at one end, mixing means therein to deliver the material toward said series of outlet openings, and a housing in. which said drum rotates, said housing having its pe- 5 ripheral walls separated from the wall of thedrum the -space-betweenthe housing and drum being inconstant communication with 7 closure for sai discharge opening.

10. A rotatable drum having a feed-opening at one end and an outlet opening in its peripheral wall, a housing surrounding said drum and inwhichsaid drum rotates, said houslng having its peripheral wallseparated from the wall of the drum by an intervening, space, scraping bars fastened tothe drum within said intervening s ace and adapted to carry the materialsin sald space to the lowest point of said housing, a discharge opening at the lowest point of said housing, and means for opening and closing said discharge opening.

11. In a mixing machine of the character described, the combination of a rotatable drum, means for feeding material thereinto to be mixed, said drum having a peripheral opening for the discharge of material from the drum, a stationary shell or housing surrounding the portion of the drum containspace'fpr mixed material, means projecting into said space between the drum and shell or housing for moving the mixed material circularl with the drum, and means for discharging the material from saidspace as it is moved with the drum.

13. In a mixing machine of the character descrlbed, the combination of a drum, means ,for feeding material into the drum to be mixed, said drum having a peripheral outlet for the discharge of material, a station'- ary shell or housing disposed about the drum in the zone of the perlpheral opening and forming a space between the drum and shell orhousing, means for preventing the escape of material from, said space, devices con trolling said means to discharge the material from said space, and means within the driim at each side of the peripheral opening for directing mixed material to said opening and into the .space between the drum and shell or housing which is in constant communication with the drum. I

ing saidperipheral opening and forming a 14. Ina mixing machine of the character described, the combination of a drum, means for feeding material into the drum to be let for the discharge of material, a stationary shell or housing disposed about the drum in the zone of the peripheral opening and forming a space between the drum and shell or housing, means for preventing the escape vof material from said space, devices controlling said means to discharge the,ma-'

terial from said space, means within the drum at each side of the peripheral opening for directing mixed material to said opening and into the space between the drum and ROBERT D. SQARS.

Witnesses: v i v ELLA CLPLUEcKH HN EMILYNEUHABTL 

